A night light projector is a device that projects images or patterns onto walls or ceilings, creating a soothing atmosphere in a room. These projectors often feature various themes, such as stars, planets, or nature scenes, making them popular for children's bedrooms. They can help ease the fear of darkness and promote relaxation before sleep. Many night light projectors come with adjustable brightness settings and timers, allowing users to customize their experience. Some models even include built-in music or sound features, enhancing the calming effect. These devices are widely used in homes and can be a delightful addition to bedtime routines.